Q: Is 1,556,442 a Composite Number?

Why is 1,556,442 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,556,442 can be evenly divided by 1 2 3 6 9 18 19 27 37 38 41 54 57 74 82 111 114 123 171 222 246 333 342 369 513 666 703 738 779 999 1,026 1,107 1,406 1,517 1,558 1,998 2,109 2,214 2,337 3,034 4,218 4,551 4,674 6,327 7,011 9,102 12,654 13,653 14,022 18,981 21,033 27,306 28,823 37,962 40,959 42,066 57,646 81,918 86,469 172,938 259,407 518,814 778,221 and 1,556,442, with no remainder.

Since 1,556,442 cannot be divided by just 1 and 1,556,442, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).